A study published last month in the Journal of the Royal Society Interface compared M.R.I.s of the brains of subjects injected with psilocybin with scans of their normal brain activity. The brains on psilocybin showed radically different connectivity patterns between cortical regions the parts thought to play an important role in consciousness. The researchers mapped out these connections, revealing the activity of new neural networks between otherwise disconnected brain regions.

read more Can Mushrooms Treat Depression? – NYTimes.com.